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Throughout the world, Riduan (Riduan , ริดวน ) is quite a common predominantly masculine, but very infrequently girly first name. The forename Riduan is characteristic of South-eastern Asia, particularly Brunei, where it is quite a rare masculine name, Indonesia, where it is quite a rare primarily male, but scarcely feminine name, and Singapore, where it is a rare masculine name. Measured by absolute frequency, it most frequently occurs in Indonesia, Bangladesh, and Morocco. Likewise, Riduan is the last name as well as the forename.